[PATCH, libgfortran] Remove generate_error from mem_alloc_w_at and clean up

[Jerry DeLisle]

:ADDPATCH fortran:

The attached patch moves the generate_error call into write_block to clear the 
way for thread safe patch.  The patch also adds checks for NULL returns from 
write_block calls where these were missing to avoid possible memory writes to 
NULL pointer.

Regression tested on i686-pc-linux-gnu. OK for mainline in front of Jacub's 
patch?  Or Jacub incorporate this?

Regards Jerry

2005-10-07  Jerry DeLisle  <jvdelisle@verizon.net>

         * io/transfer.c (write_block): Add test for end-of-file condition,
         removed from mem_alloc_w_at.
         * io/trasnfer.c (unformatted_write): Add return on NULL from
         write_block call.
         * io/transfer.c (next_record_w): Clean up checks for NULL pointer
         returns from s_alloc_w.
         * io/unix.c (mem_alloc_w_at): Remove call to generate_error end-of-file.
         * io/write.c (write_float): Add checks for NULL pointer returns from
         write_block calls.
         * io/write.c (write_integer): Add checks for NULL pointer returns from
         write_block calls.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ioreturns.diff
Type: text/x-patch
Size: 3930 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/fortran/attachments/20051007/126805e9/attachment.bin>